DAC-FFDAC-FFThe Ultimate Fibre-to-Fibre Channel External RAID

Controller Solution for High Performance Servers, Clusters, and Storage Area Networks (SAN)

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DAC-FF -DAC-FF - Technology Technology

2 Fibre Channels to Host2 Fibre Channels to Host 4 Fibre Channels to Drives4 Fibre Channels to Drives

100MHz RISC Processor100MHz RISC Processor256MB ECC Cache256MB ECC Cache

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TechnologyTechnology Fibre Technology

Fibre Channel Host connectivity Data Transfer rates of 100MB/s per channel over a 30 Meter

serial link Distances of several kilometers via Fibre Hubs and switches Fibre Channel Drive connectivity 4 Channels for up to 500 drives; storage: 25.0 Terabytes

Guaranteed Performance Dedicated XOR/ Cache controller Up to 256 MB ECC protected User Data Cache Burst Cache Transfer rate: over 190 MB/s

Proven system architecture RISC processor -- 100 MHz i960RN Common Management software

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ArchitectureArchitecture

PCI Bus 0

32 - 256 MBSDRAM

i960 RISCProcessor

FCIOP

FCIOP

FCIOP

North Bay

FCIOP

16 MB DRAM

FCIOP

FCIOP

PCI Bus 1

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HardwareHardware

RISC Processors (i960RN 100MHz)

Firmware: 2MB Flash EEPROM

Up to 256 MB ECC Data Cache Dual 64 bit PCI Bus design 5 1/4” form factor

2 Copper FC-AL host channels Burst cache transfer rates: Over

190 MB/s 4 Fibre Channel drive channels Up to 125 devices per Fibre

channel - 500 devices per controller

Up to 25.0TB (Seagate 50GB drives) capacity per controller

DAC-FF:

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BoardBoard

256 MB ECC cache

RISC Processors (i960RN)

XOR engine

4 FC-AL channels( to Drives)

2 FC-AL channels( to Host)

DACFF

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RAID 0, 1, 0+1, 3, 5, 10, 30, 50 and JBOD Write Through and Write back or read-ahead support Active/Active ----- Failover/Failback for High Availability Variable Stripe size per controller Variable Cache Line size per controller Mirrored Cache for Data Integrity Clustering Support

Windows NT, UNIX, SCO UNIX, NetWare

Designed to fit in an Industry standard 5 1/4” half-height form factor

DAC-FF FeaturesDAC-FF Features

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Advanced RAID FeaturesAdvanced RAID Features

Fault Tolerance: Automatic detection of Failed drives

Automatic and transparent re-build of replacement drive

On-line RAID expansion

Hot Spare drive support

Hot Drive Swapping support

SAF-TE and SES enclosure management

RAID configuration stored on disk and NVRAM

Add a LUN; Expand a LUN

DAC-FF

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Simplex Performance and CapacitySimplex Performance and Capacity Performance

SX SF FL FFBurst IO’s Per Second 1,800 4,100 4,100 5,800Burst (cache) Bandwidth (MB/s) 45 97 97 190Sustained (disk) Bandwidth (MB/s) 30 52 52 190

Note: Sequential read performance, small blocks, no coalescing driver.

Storage SX SF FL FF

Disks 75* 90 60 500**

Terabytes (9 GB) 7 .8 .5 4.5Terabytes (18 GB) 1.4 1.6 1.0 9.0

* Single host channel ** Single ported disks

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PerformancePerformance

Sustained transfers to Disk RAID 5 Reads 190MB/s RAID 5 Writes 150MB/s

Burst Cache Transfer rates Reads 190MB/s Writes 190MB/s

DAC-FF

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Global Array ManagerGlobal Array Manager™™ (GAM) (GAM)

Network Security Levels Guest Access Admin Access

Online capacity expansion Remote Instrumentation

DMI SNMP

SMART Support

Wizard Configuration Flash upgradable F/W OS-Independent Server

API Performance Monitoring

Controller Statistics Drive Statistics Historical Statistics

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BenefitsBenefits Unparalleled Performance

RISC Processors--i960RN 100MHz Fibre Channel to host interface at 100MB/s per channel Fibre Channel to drive interface at 100MB/s per channel Mylex Firmware + Software

Flexible Storage & Fault Tolerance Feature rich RAID NT and Unix Clustering Storage Area Networks (SAN) Mirrored Cache RAID expansion (M.O.R.E.™1)

Configuration & Remote Management Global Array Manager™ (GAM) Client Server GUI Create, Manage, Expand and Monitor

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Target ApplicationsTarget Applications Designed for $30K to $200K servers

Departmental to Enterprise NT Servers Low-end to Mid-Range UNIX Systems 3,000 to 30,000 IO’s per second 10’s of GB’s to 10’s of TB’s

Designed for Clusters NT (Microsoft Cluster Server), NetWare ORION and

UNIX clusters Support for Storage Area Networks (SAN) Active / Active Duplex Configurations

Concurrently operation --> performance Transparent failover / failback --> non-stop operation Mirrored cache architecture --> guaranteed data integrity

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Controller 0

Reserved

Controller 1

ReservedActiveActive

Active /Active -- Fibre Active /Active -- Fibre InterconnectInterconnect Concurrent I/O Services from single or multiple servers to dual

controllers increase performance

Controller failover requires dual host ports

Fibre silicon does not support multiple port addresses

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Failover -- Fibre InterconnectFailover -- Fibre Interconnect

With multiple host ports, when a controller fails failover is initiated

Reserved port of the surviving controller assumes port ID of the active port on the failed controller

Controller 0

Reserved

Controller 1

ReservedActiveActive

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Failback -- Fibre InterconnectFailback -- Fibre Interconnect When the failed controller is replaced, port ID from the

reserved port on the surviving controller is transparently returned to the active port on the new controller

Active / Active operation is resumed

Controller 0

Reserved

Controller 1

ReservedActiveActive

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FC HBA FC HBAFC HBA

Scaleable Fault Tolerant ConfigurationsScaleable Fault Tolerant Configurations

FC Hub

Controller 0

Active Reserved

FC HBA

Controller 1

Active Reserved

Controller 3

Active Reserved

Controller 2

Active Reserved

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Wolfpack-II Parallel Application Wolfpack-II Parallel Application ComputingComputing

FC Switch

Controller 0

Active Reserved

FC HBAFC HBAFC HBA FC HBA

Controller 1

Active Reserved

Controller 3

Active Reserved

Controller 2

Active Reserved

FC HBA FC HBA FC HBAFC HBA

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Parallel App Clusters - Wolfpack-IIParallel App Clusters - Wolfpack-II N-Node, Switched Fibre, N-FF’s Arrays, FCAL to Disk

FC Switch

FF Controller 1

Port 0Active

Port 1Active

FF Controller 0

Port 0Active

Port 1Active

FC HBA

FF Controller 1

Port 0Active

Port 1Active

FF Controller 0

Port 0Active

Port 1Active

FC HBAFC HBA

FC HBA